How the number of players is calculated?The player counts are not accurate for recently released games.
They can be completely off for the games released in mid-November. That's why Hitman 2, Battlefield V, Spyro Reignited Trilogy and Fallout 76 were removed.
Sometimes statistics are only available for a particular region, not the whole world.
This is a work in progress and numbers are subject to change.
These are players, not sales.